Finding the Third Proportional to 3,640,530,069,545 and 7,921,940,083,870

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640,530,069,545 : 7,921,940,083,870 = 7,921,940,083,870 : x
2. Step 2: Convert to fraction form
   3,640,530,069,545/7,921,940,083,870 = 7,921,940,083,870/x
3. Step 3: Cross multiply
   3,640,530,069,545x = 7,921,940,083,870 × 7,921,940,083,870
4. Step 4: Simplify right side
   3,640,530,069,545x = 62,757,134,692,426,226,849,546,240
5. Step 5: Solve for x
   x = 62,757,134,692,426,226,849,546,240/3,640,530,069,545
6. Step 6: Final answer
   x = 17,238,460,744,335.98